Finding the Fourth Proportional to 120,878,184.87, 166,764,544.34 and 74,387,726.19
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Solution
The fourth proportional to 120,878,184.87, 166,764,544.34 and 74,387,726.19 is: 102,625,922.75
Step by Step Solution
- Step 1: Write the proportion equation
120,878,184.87 : 166,764,544.34 = 74,387,726.19 : x - Step 2: Convert to fraction form
120,878,184.87/166,764,544.34 = 74,387,726.19/x - Step 3: Cross multiply
120,878,184.87x = 166,764,544.34 × 74,387,726.19 - Step 4: Simplify right side
120,878,184.87x = 12,405,235,262,192,096 - Step 5: Solve for x
x = 12,405,235,262,192,096/120,878,184.87 - Step 6: Final answer
x = 102,625,922.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.